1. Oneplus X call waiting option shows call as incoming call if there is any call in background during any conversation. It should highlight background call as missed call with a icon on top bar.
2. During making any call, there is no visible sign if phone is ringing or subscriber busy. No visible display /color change that call is matured only you have to see small call duration to identify it.
2. During making any call, there is no visible sign if phone is ringing or subscriber busy. No visible display /color change that call is matured only you have to see small call duration to identify it.